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What gears does my car have?

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Old 02-17-2005, 01:19 AM
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Default What gears does my car have?

Do I have 2.73 or 3.23 gears?
Old 02-17-2005, 01:58 AM
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check out your RPO codes on the drivers-side door, might have to look up a listing somewhere of what all the codes mean. you can also jack the car up, rotate the tire one time, and count how many times the pinion spins.

example) tire spins once and pinion spins ALMOST 3 times... its a 2.73

example) tire spins once, and pinion spins a little more than 3 times... its a 3.23

i think all the SS cars have a 3.23, but i'm not for positive.
Old 02-18-2005, 02:29 AM
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you have 3.23s in there.thats what came out of mine and switch to 3.73s.
Old 02-18-2005, 01:15 PM
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Ok, I just wanted to make sure. I wanted to change them if they were 2.73 but Im fine with the 3.23. Now just gotta change to a 12 bolt...
Old 02-18-2005, 02:42 PM
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Well urs is an SS so it might be 3.42's. Go to ur driver side door and look for the codes that start with a G. GU5=3.23, GU63.42, GU2=2.73
Old 02-18-2005, 05:44 PM
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all manuals came with 3.23's .. if you have an auto it could be 3.42's
Old 02-18-2005, 05:50 PM
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also check the door for these codes...
GU4 AXLE REAR, 3.08 RATIO

GU5 AXLE REAR, 3.23 RATIO

GU6 AXLE REAR, 3.42 RATIO
Old 02-18-2005, 07:04 PM
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Originally Posted by 00firebird
all manuals came with 3.23's .. if you have an auto it could be 3.42's
Actually auto come with either 2.73 or 3.23. All manuals come with 3.42's.
Old 02-20-2005, 11:57 PM
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Originally Posted by 00firebird
also check the door for these codes...
GU4 AXLE REAR, 3.08 RATIO

GU5 AXLE REAR, 3.23 RATIO

GU6 AXLE REAR, 3.42 RATIO
no f-bodies (ls1 at least)came with the 3.08 ratio.
Old 02-21-2005, 12:26 AM
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Hummm....Tommorow I will look on my door to se what gears my car has.
Old 02-21-2005, 12:50 AM
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you have an SS lol its got 3.23's
Old 02-21-2005, 02:10 AM
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yup.....all M6's came with 3.42's.......all auto's with Z rated tires(16 or 17inch) 3.23's....rest of the auto's were 2.73's
Old 02-21-2005, 06:59 PM
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Ok I looked on the door, and it had the GU5 Code. So it has 3.23 gears.
Old 02-21-2005, 09:35 PM
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Originally Posted by IMKMFAST
yup.....all M6's came with 3.42's.......all auto's with Z rated tires(16 or 17inch) 3.23's....rest of the auto's were 2.73's
Not true. 2.73's did not depend on ur tire rating or rim size. It was just what u got. 3.23's or 2.73's either was available for A4's. My friends 02 Z with Z rated tires rim size 16 it came with 2.73's.

Also F-bodies did come with 3.08's. Ur right LS1's didn't but in the V6 camaro's it was an option just like the 3.23's and 2.73's were for the V8's. 3.08's i think were for the M5's.
Old 02-21-2005, 09:37 PM
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Originally Posted by GT Griller
Not true. 2.73's did not depend on ur tire rating or rim size. It was just what u got. 3.23's or 2.73's either was available for A4's. My friends 02 Z with Z rated tires rim size 16 it came with 2.73's.

Also F-bodies did come with 3.08's. Ur right LS1's didn't but in the V6 camaro's it was an option just like the 3.23's and 2.73's were for the V8's. 3.08's i think were for the M5's.

Your right it didnt depend on the tire rating-the tire rating depended on the gear




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